|
Bird's Patterns of Chick Development -- Page 3
Precocial
chicks Compared to
altricial
chicks.
Type
Chicks
|
Down?
|
Eyes
Open?
|
Mobile?
|
Self
Feed?
|
Parents
Absent?
|
Examples
|
|
Precocial 1
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Megapodes
|
|
Precocial 2
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Ducks, Plovers
|
|
Precocial 3
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Quail, Turkey
|
|
Precocial 4
|
Yes
|
Yes
|
Yes
|
Yes/No
|
No
|
Grebes, Rails
|
|
Semi-precocial
|
Yes
|
Yes
|
No
|
No
|
No
|
Gulls, Twens
|
|
Semi-altricial 1
|
Yes
|
Yes
|
No
|
No
|
No
|
Herons, Hawks
|
|
Semi-altricial 2
|
Yes
|
No
|
No
|
No
|
No
|
Owls
|
|
Altricial
|
No
|
No
|
No
|
No
|
No
|
Passerines
|
Precocial 3 are shown food Precocial 2 follow
parents but find own food
|